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[190.5.140.142]) by smtp.gmail.com with ESMTPSA id a1e0cc1a2514c-94da8a05060sm9902928241.6.2026.02.24.07.57.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Feb 2026 07:57:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1771948649; x=1772553449; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=v9+lW+DSDlpSHt3UBv5+MmnqIWtMkhzwTy2QDZ17jkM=; b=Kv3vkqyEmbvCkPgeZbzcPiBZXt5Z9Hbi48+iFyp8AdWZbIrZmygnRqdalCJ0T04HKo PmWqNvoQ/y3jyBzGn7agPt7RfYAn+MfR3wxw+LaOpRrkSt/tvqWUBM4aK1GyDHd4MYNZ 5Gr8bRU67aWfmFNAOoxDypNIJvuSiVUoD/FHq5iqjdb6iANDx6BP9UyUS2HXBzREHDm+ u72Y6p8mUNu98Re0a/CrxI1kMZHOR7PxDCII2bCiOXusZoT2RgtyEz1WTeOlUWX4yF7U 6XiUT/XWshOydiI/8nqwjVxsybCFQkLqjC5RZmwv9BhcQOJOrofr2+FsBCe1szGDNgO8 JsFg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1771948649; x=1772553449; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=v9+lW+DSDlpSHt3UBv5+MmnqIWtMkhzwTy2QDZ17jkM=; b=qwKSfc9adVPMUQ1dsNIrd0V3n499dmNE7fpwwOJgr7DJgbbnM76CTs8+MKKzkD1ILj E5oAgZZF2nronREvoYL0ujnOWI8NxQLGWWoFTmRETqVtIS384cBRk3ak4vwQBddP/LQo CVZytCQ+LmmEfxRO36PadzieJyFS8Z+C5rKt8QYqazXsRnwV7klVnOU83RFlHQXBDzYe 9CfgjJYhimcS9Oh/ruaqKPsQUWVhyAR7VGMA53VacxHAarzT+CMBmAkk91/iIP9Cdo+u sqk/zoP+62UXSkltIi0Gtv1jYLIZsjJstITwuGSXcLW+fCIVrFMpqvwfxIPRVVV63SHO IyuQ== X-Gm-Message-State: AOJu0YwznB1v8j9qExpuXjFtyiyA4fpYf6cV8eusSELko+ctlgjvxgrd BH/+k9I5PDC/T+sYPEueqr104ArSjV7TwN9Kzdj91LZ6pt+2RwCYlYJqTnFm92Hx X-Gm-Gg: ATEYQzxAAGdTART0iTr9lh4DqqCi0A402mNPzwUD8slIsClKMoY6iLdMGzbURLvsq1x ly1ICHWW6XW35Ls1GLWf3DFxe48vfg2QQD1ybg2NEfpOvWbv/FLB/pB0ou45XsxFKc0/Saf66qE NELBVACeTCnGro7EIN03BkcTCFtcnSkOqImvMtQgVKtC1to1+X9/duANFUUHEGTkR3vX8qpQbA8 pnhh+2cjEZP1EEjaPrGvhp89meXe4s9mqwWgFt0PEDaPj57IpKLlGVfpPMlu6OyamsdKACIXDRr mUlq7EXi5DbanAvdR/XqCihEmJgOEm/mqd4n6rBsBN/QaRVcTtqHQa6fOSxbcNvRKCgzWNbPWsx cDLes5MIHAzegoLLa9bVWtiNg+b4QiUCX39uMGCugQtW56cLMLJasGG0rBat6aX9tGdYUb6RYPp E+S0fvGtoBtATO19acoHlslCurHz0+8Bz9l7Wlv6ojCGso62D9FJYOyKoVYA== X-Received: by 2002:a05:6102:4192:b0:5fd:7140:e38b with SMTP id ada2fe7eead31-5feb310c798mr4329570137.35.1771948649433; Tue, 24 Feb 2026 07:57:29 -0800 (PST) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org, "Michael S. Tsirkin" Cc: alex.bennee@linaro.org, bill.mills@linaro.org, edgar.iglesias@amd.com Subject: [PATCH v2 1/4] virtio: Add virtio_queue_get_rings Date: Tue, 24 Feb 2026 16:57:18 +0100 Message-ID: <20260224155721.612314-2-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260224155721.612314-1-edgar.iglesias@gmail.com> References: <20260224155721.612314-1-edgar.iglesias@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::a29; envelope-from=edgar.iglesias@gmail.com; helo=mail-vk1-xa29.google.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1771948671627158501 Content-Type: text/plain; charset="utf-8" From: "Edgar E. Iglesias" Signed-off-by: Edgar E. Iglesias --- hw/virtio/virtio.c | 16 ++++++++++++++++ include/hw/virtio/virtio.h | 14 ++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index e9d5532952..00d387ba05 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -2402,6 +2402,22 @@ void virtio_queue_set_rings(VirtIODevice *vdev, int = n, hwaddr desc, virtio_init_region_cache(vdev, n); } =20 +void virtio_queue_get_rings(VirtIODevice *vdev, int n, hwaddr *desc, + hwaddr *avail, hwaddr *used) +{ + assert(vdev->vq[n].vring.num); + + if (desc) { + *desc =3D vdev->vq[n].vring.desc; + } + if (avail) { + *avail =3D vdev->vq[n].vring.avail; + } + if (used) { + *used =3D vdev->vq[n].vring.used; + } +} + void virtio_queue_set_num(VirtIODevice *vdev, int n, int num) { /* Don't allow guest to flip queue between existent and diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 9dd93cf965..3a24d109fb 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -361,6 +361,20 @@ int virtio_queue_get_max_num(VirtIODevice *vdev, int n= ); int virtio_get_num_queues(VirtIODevice *vdev); void virtio_queue_set_rings(VirtIODevice *vdev, int n, hwaddr desc, hwaddr avail, hwaddr used); +/** + * virtio_queue_get_rings() - read ring addresses for a virtqueue + * @vdev: the virtio device + * @n: queue index + * @desc: optional pointer for the descriptor ring address + * @avail: optional pointer for the available ring address + * @used: optional pointer for the used ring address + * + * Returns the ring addresses configured for queue @n. The queue must + * be initialized (non-zero size); passing NULL for any output argument + * skips that address. + */ +void virtio_queue_get_rings(VirtIODevice *vdev, int n, hwaddr *desc, + hwaddr *avail, hwaddr *used); void virtio_queue_update_rings(VirtIODevice *vdev, int n); void virtio_init_region_cache(VirtIODevice *vdev, int n); void virtio_queue_set_align(VirtIODevice *vdev, int n, int align); --=20 2.43.0